Re: list of lists
- To: mathgroup at smc.vnet.net
- Subject: [mg15494] Re: list of lists
- From: "Donald E. Niman <niman.at.ieee.org>" <Donald at newsguy.com>
- Date: Mon, 18 Jan 1999 04:22:37 -0500
- Organization: Consultant
- References: <77jkin$2v6@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In a dream I recall that on 13 Jan 1999 21:25:27 -0500, in article
<77jkin$2v6 at smc.vnet.net>, "wgrebe" blurted out thus...
>
>Hallo,
>
>I have a 2-dimensional list, which is very large. It consists of 1024
>sublists, each with 11 elements.
>I want to have a smaller list, where every 5th sublist is element. What
>can I do?
>
>
>Thank you
> Witold
>
>wgrebe at cityweb.de
>
>
>
This statement creates a list to test with:
lis=Table[{i,j},{i,1024},{j,11}];
This extracts every fifth element starting at the fifth element:
lis[[Range[5,1024,5]]]
I hope this is the solution you are looking for.
Donald E. Niman
Peoria Arizona or Rancho Cucamonga California My opinions today do not
necessarily reflect my earlier opinions.